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Cheap flights from Ireland to Belfast from €43

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Belfast departing on 9/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from Ireland to Belfast

Recent return flight deals from Ireland to Belfast

Enter your travel dates to find the best prices.
Multiple Airlines Logo
21:20 - 07:05
DUB
-
BFS
9h 45m
1 stop
Multiple Airlines Logo
07:35 - 16:25
BFS
-
DUB
8h 50m
1 stop
€84Multiple Airlines
Tue, 21 Jul - Tue, 28 Jul
Multiple Airlines Logo
22:25 - 07:05
ORK
-
BFS
8h 40m
1 stop
Multiple Airlines Logo
07:35 - 21:45
BFS
-
ORK
14h 10m
1 stop
€85Multiple Airlines
Tue, 4 Aug - Tue, 11 Aug
Multiple Airlines Logo
22:25 - 07:05
ORK
-
BFS
8h 40m
1 stop
Multiple Airlines Logo
07:35 - 21:45
BFS
-
ORK
14h 10m
1 stop
€85Multiple Airlines
Tue, 4 Aug - Tue, 11 Aug
Multiple Airlines Logo
22:25 - 07:05
ORK
-
BFS
8h 40m
1 stop
Multiple Airlines Logo
07:35 - 21:45
BFS
-
ORK
14h 10m
1 stop
€86Multiple Airlines
Tue, 4 Aug - Tue, 11 Aug
Multiple Airlines Logo
21:10 - 10:00
DUB
-
BFS
12h 50m
1 stop
Multiple Airlines Logo
21:55 - 08:30
BFS
-
DUB
10h 35m
1 stop
€86Multiple Airlines
Mon, 20 Jul - Mon, 27 Jul
Multiple Airlines Logo
08:30 - 22:20
SNN
-
BFS
13h 50m
1 stop
Multiple Airlines Logo
15:40 - 23:35
BFS
-
SNN
7h 55m
1 stop
€87Multiple Airlines
Thu, 16 Jul - Wed, 22 Jul
Multiple Airlines Logo
22:25 - 07:05
ORK
-
BFS
8h 40m
1 stop
Multiple Airlines Logo
05:55 - 15:35
BFS
-
ORK
9h 40m
1 stop
€90Multiple Airlines
Tue, 4 Aug - Tue, 11 Aug
Multiple Airlines Logo
20:30 - 08:05
DUB
-
BFS
11h 35m
1 stop
Multiple Airlines Logo
07:35 - 19:55
BFS
-
DUB
12h 20m
1 stop
€90Multiple Airlines
Tue, 11 Aug - Tue, 18 Aug
Multiple Airlines Logo
21:05 - 10:00
ORK
-
BFS
12h 55m
1 stop
Multiple Airlines Logo
21:55 - 08:05
BFS
-
ORK
10h 10m
1 stop
€92Multiple Airlines
Mon, 10 Aug - Mon, 17 Aug
Multiple Airlines Logo
21:10 - 10:00
DUB
-
BFS
12h 50m
1 stop
Multiple Airlines Logo
07:35 - 19:55
BFS
-
DUB
12h 20m
1 stop
€92Multiple Airlines
Mon, 27 Jul - Tue, 4 Aug

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Aer Lingus flights from Ireland to Belfast

Our best Aer Lingus deals on Ireland to Belfast flight tickets
Aer Lingus
27 Jul
DUB06:40Dublin
14h 10m
1 stop
BHD20:50Belfast City
4 Aug
BHD12:40Belfast City
9h 05m
1 stop
DUB21:45Dublin
€196
Aer Lingus
17 Aug
DUB12:45Dublin
8h 20m
1 stop
BHD21:05Belfast City
24 Aug
BHD07:00Belfast City
15h 05m
1 stop
DUB22:05Dublin
€217
Aer Lingus
17 Aug
DUB12:45Dublin
8h 20m
1 stop
BHD21:05Belfast City
24 Aug
BHD11:05Belfast City
7h 30m
1 stop
DUB18:35Dublin
€218

KLM flights from Ireland to Belfast

Our best KLM deals on Ireland to Belfast flight tickets
KLM
1 Aug
ORK06:15Cork
27h 05m
1 stop
BHD09:20Belfast City
15 Aug
BHD17:30Belfast City
23h 15m
1 stop
ORK16:45Cork
€451
KLM
1 Aug
ORK06:15Cork
27h 05m
1 stop
BHD09:20Belfast City
15 Aug
BHD17:30Belfast City
20h 55m
2 stops
ORK14:25Cork
€468
KLM
1 Aug
ORK17:05Cork
40h 15m
2 stops
BHD09:20Belfast City
15 Aug
BHD17:30Belfast City
20h 55m
2 stops
ORK14:25Cork
€485

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 25 June 2026.
Use the filters below to find and compare flights from Ireland to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 21/7

21:20-07:05

1 stop9h 45m

Belfast Intl

Tue 28/7

07:35-16:25

1 stop8h 50m

€84

CorkBelfast

ORK - BFS

ORKBFS

Cork

Tue 4/8

22:25-07:05

1 stop8h 40m

Belfast Intl

Tue 11/8

07:35-21:45

1 stop14h 10m

€85

CorkBelfast

ORK - BFS

ORKBFS

Cork

Tue 4/8

22:25-07:05

1 stop8h 40m

Belfast Intl

Tue 11/8

07:35-21:45

1 stop14h 10m

€85

CorkBelfast

ORK - BFS

ORKBFS

Cork

Tue 4/8

22:25-07:05

1 stop8h 40m

Belfast Intl

Tue 11/8

07:35-21:45

1 stop14h 10m

€86

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 20/7

21:10-10:00

1 stop12h 50m

Belfast Intl

Mon 27/7

21:55-08:30

1 stop10h 35m

€86

ShannonBelfast

SNN - BFS

SNNBFS

Shannon

Thu 16/7

08:30-22:20

1 stop13h 50m

Belfast Intl

Wed 22/7

15:40-23:35

1 stop7h 55m

€87
Fastest return journey

CorkBelfast

ORK - BFS

ORKBFS

Cork

Tue 4/8

22:25-07:05

1 stop8h 40m

Belfast Intl

Tue 11/8

05:55-15:35

1 stop9h 40m

€90

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 11/8

20:30-08:05

1 stop11h 35m

Belfast Intl

Tue 18/8

07:35-19:55

1 stop12h 20m

€90

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 10/8

21:05-10:00

1 stop12h 55m

Belfast Intl

Mon 17/8

21:55-08:05

1 stop10h 10m

€92

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 27/7

21:10-10:00

1 stop12h 50m

Belfast Intl

Tue 4/8

07:35-19:55

1 stop12h 20m

€92

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Ireland to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ireland to Belfast?

Ryanair is the most popular carrier operating from Ireland to Belfast

Cheap Ireland to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Belfast

Fastest flight time

4h 25m

Direct flights

None
The fastest flight from Ireland to Belfast takes 4h 25m
There are no direct flights from Ireland to Belfast. There are no popular flight routes from Ireland to Belfast.
Search flight deals

Frequently asked questions about flying from Ireland to Belfast

  • When did momondo last update prices for flights from Ireland to Belfast?

    Prices for flights from Ireland to Belfast are refreshed on a daily basis.

  • How old do you have to be to fly from Ireland to Belfast?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Belfast?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Belfast . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ireland to Belfast with flexible booking policies on momondo?

Yes. All flights to Belfast from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ireland to Belfast?

Once all potential Ireland to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ireland to Belfast right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ireland to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 19.6 km from Belfast
Belfast Intl Airport
Belfast City Airport